Spraying device



R. S. BLAIR.

SPRAYING DEVICE.

APPLICATION FILED NOV. 6. 19:5.

Patented Nov. 25, 1919.

WITNESSES.

ROBERT S. BLAIR, OFSOUTHORANGE, NEW JERSEY.

SPBA'YING DEVICE.

Specification of Letters Patent.

Patented Nov. 25, 1919.

Application filed November 6, 1915. Serial No. 59,913.

To all whom it may concern:

Be it known that I, ROBERT S. BLAIR, a citizen of the United States, andresident of South Orange, in the county of Essex and State of NewJersey, have invented certain new anduseful Improvements in SprayingDevices, of which the following is a specification.

This inventionrelates to spraying devices and more particularly to bathsprays.

One of the objects thereof is'toxprovide a simple and practical deviceof the above nature which shall be convenient and effi cient inuse.

Another'object is to provide in connection with apparatus of the abovetype means for automatically regulating the discharge under varyingconditions of its supply.

Another object is to provide a bath spray of simple construction adaptedautomatically to maintain a substantially constant range of discharge asthe water supply 1s increased or diminished.

Other objects will be in part obvious and in part pointed outhereinafter.

The invention accordingly consists in the features of construction,combinations of elements and arrangements of parts which will beexemplified inthe structure hereinafter described, and in scope of theapplication of which will be indicated in the-following claims.

In the accompanying drawing in which is shown one or more of the'variouspossible embodiments of the several features of this invention,

Figure 1. isa side elevation of a part" of a bath tub,certain partsbeing cut away in order to disclose the structure more clearly.

Fig. 2. is a sectional view taken alongthe line A-A of F ig. 1.

Fig. 3. is a similar view taken along the line B-B of Fig.- 1.

Fig. 4. is an enlarged sectional view'tak'en along the line CO of Fig.1.

Fig. 5. is a sile view of a portion of. a bath tub, certain parts beingcut away in order to disclose the structure more clearly, and showing aslightly differentform of spraying apparatus- Fig. 6. isa-sectionalview-of anotherform of automatic regulating device. v

Similar reference-characters refer to simithe drawings.

Referring now to Fig. 1. of the drawing thereis shown at La bath tubprovided with hot and cold water supply pipes 2 and 3 which arecontrolled respectively by. the faucets or valve spindles 4: and 5 theirjoint Cl1SCl1LTg6 passing through the nozzle 6. To this nozzle there isdetachably secured, as

at 7 a resilient tubular member 8 which is preferably round in crosssection at 9 and 10 and elliptical, as indicated in Fig. 2 of thedrawings, atll'the greater axis of the ellipse being disposedhorizontally. To the outer end of the member 8 there is secured a spray12, a preferred embodiment of which is shown in detail in Fig. 4: ofthedrawing, although many of the advantages of this invention may beattained by a simple spray of the ordinary type at this point.

The spray 12, comprises rigid side walls 13 of tapering formto provide arear wall 14;, which is greater inarea than the front wall 15. These twolatter wallsare of thin resilient metal and the wall 15 is perforatedasat 16 to permit the discharge to pass out and is normally outwardlyconvex. The Water is led through the side wall 18 as indicated'at 17 inFig. 1. of the drawinggand with low pressure the discharge is outwardlydispersed, as indicatedby the lines 18 in' Fig. 4: The wall 14.,however, is connected with the wall 15, as by the pin 19 and adjustablenut 20, and upon the pressure of the water becoming excessive the wall 11.

which isof-the greater area tends tobulge outwardly and rearwardlytoward the dotted'line' 21, and to draw the wall 15 toward the dottedline2'2, thus flattening to a greater or less extent the wall 15andpreventing the discharge from being dispersed over such a'wide angle. Inthis manner any increase of pressure with a tendency to throw thesprayed water throughout a longer path, automatically lessens theextreme angle between jets of the spray and tends to maintain uniformthe area over which'they are-sprayed at theirpoint of im- I or curvedportion of the tube 8 tends to straighten out nd, throw' the waterhigher,

tion indicated in dotted lines at 23. distance which the'water is thrownlengthwise of the tub is thus maintained substantially uniform as anyincrease in the strength or" the discharge of the spray, simultaneouslyraises the angle or the discharge and thus maintains the rangelengthwise of the tub substantially constant. In Fig. 5 of the drawingthere is shown a form of device in which an ordinary spray v 24' isconnected by a resilient tube 25 with the spout 6, the tube 25:beingelliptical in cross section at 26 and round at 27 and 28. This form ofapparatus is normally set for its most eflicientangle of discharge, thatis, maximum range, and as the pressure increases it is automaticallytilted toward the position indicated by dotted lines at 29, theresilient tube straightening out. In this manner the spray is tilteddownwardly as the pressure increases and discharge over 7 the end of thetub is prevented.

In Fig. 6 of the drawing there is shown a 25 different form of apparatusin which, how

ever, certain parts of the objects of this invention are achieved. Inthis figure the spout 6, connected as before described for the jointdischarge from hot and cold water faucets, fits into a cup 30, flangedat 31, and having a rubber ring 32 to form a tight and 'yet readilyseparable joint between these members. The lower end of the cup orfunnel terminates in a short tube 33 which fits within a rigid tube 34;curving as at 35 to the upwardly inclined spray 36 0f anyordinaryconstruction. This spray is directed upwardly to throw the jets37 not only lengthwise of the tub but at a sharp upward' 40 angle andthus permit them to fall in the form of a shower.

Thetube 3a is intended to shape throughout the use of the apparatus butit may be, if desired, of malleable metal, so as to permit it to beadjusted or set to a difl'erent angle if desired.

Mounted within the cup 30 and having its lowermost coil interlocked withan annular recess 38v is a spiral spring 39, the upper end of which issecured aboutthe shank 40 of a .fiat button 41.

button 41 and surrounding portions of the cup 30,ar,e so. shaped as tocause the. button to be pressed downwardly toward the tube 33 asthepres'sure of discharge through the spout6 is increased, thisdepression being substantially proportional to the increase ofdischarge. In thismanner as the discharge is'increase'd or decreasedfrom the 60 spout 6 the'button'al is moved downwardly or upwardly andthus varies the obstruction of the outlet of the water from cup30 to thetube 33. The discharge through the v spray is thus held substantiallyconstant in ,65 .the' amountand pressure, and any tendency maintain itsSpring 39 as well as the' to, vary this through adjustment of either ofthe faucets is automatically corrected by.

'a greateror less throttling tendency of the button 41. It is to beespecially noted that the spring 39 should be so wound andproportionedthat its resistance to 'compresslon increases rapidly as thecompression progresses in. 10rder to prevent an unduly great depressionof the button as the'd1s-' charge through the spout 6 is increased. I I

It willthusibe seen that there is'provided' V apparatus in which theseveral objects of this invention are achieved.

' As various changes might be made in the above constructions and asthis invention might beembodied'in otherforms it is intended that allmatter herein described or shownin the. accompanying drawing shall beinterpreted as illustrative-and not in a limitingsense. V

Having described this invention, I claim I 1. In spraying apparatus, incombination, means connected witha source of fluid supply, a sprayingdevice and means adapted '90 automaticallyto tend to cut downthe rangeofdischarge of said spraying device as the pressure. from said source ofsupply increases.

2. In spraying apparatus, in combination, means connected with a sourceof fluid supply, a-spraying device and-means adapted, automatically totend to'vary' the range of discharge of said. spraying device inverselyin accordance with the pressure from said source of supply. r

3. In spraying apparatus, in combination, a source of fluid supply, aspraying device and means comprising a resilient member connecting saidsource-of supply'with said 10 spraying device, said resilient memberbeing subjected to the effect 'ofchanging pressure from said source offluid supply and adapted to tend to cut down the range of discharge ofsaid spraying device as said pressure in- "creases and maintain saldrange substantlally constant.

. 4. In sprayingiapparatus, in combination, a source of fluld supply, aspraymg device,-

a curved resilient member and means'connecting said member between saiddeviceand said source of supply and tending to swing said sprayingdeviceangularly into a 'positionfor less range of discharge, as

said resilient member is distorted by increase of pressure from saidsource of sup ply! r r V U r 5.. In spraying apparatus, in combination,

a discharge spout, 'a spraymg device, and

a curved resilient tube connecting said spraying device with'saiddischarge spout and normally holding said device at an angle forgreatest range ofdischarge, said tube being "positioned to'swing saiddevice into a le s favorable angle for discharge as the '130 pressurefrom said spout is increased and to swing it back toward said mostfavorable angle as said pressure is lessened. I

6. In spraying apparatus, in combination, a discharge spout, a sprayingdevice and a curved resilient tube connecting said spraying device withsaid discharge spout and normally holding said device at an angle forgreatest range of discharge, said tube being positioned to swing saiddevice into a less favorable angle for discharge as the pressure fromsaid spout is increased and to swing it back toward said most favorableangle as said pressure islessened and said tube having a horizontallyelongated cross section at its curved portion.

7. In spraying apparatus, in combination, means connected with a'sourceof fluid supply, a spraying device, means adapted automatically to tendto cut down the range of discharge of said spraying device as thepressure from said source of supply increases, and means adaptedautomatically to decrease the maximum angle of divergence between thejets discharged from said spraying device as pressure within said deviceincreases.

8. In spraying apparatus, in combination, a source of fluid supply, aspraying device, a curved resilient member, means connecting said memberbetween said device and said source of supply and tending to swing saidspraying device angularly into a position for less range of discharge assaid resilient member is distorted by increase of pressure from saidsource of supply, and means adapted automatically to decrease themaximum angle of divergence between the jets discharged from saidspraying device as the pressure within said device increases.

9. In spraying apparatus, in combination, a source of supply of hot andcold water, a commondischarge member, means adapted to varyindependently the supply of hot and cold water to said discharge member,means adapted to spray waterfrom said discharge member, and meansadapted automatically to tend to cut down the range of discharge fromsaid spraying means 'as the pressure from the source of supply isincreased by said varying means.

10. In spraying apparatus, in combination, means connected with a sourceof fluid supply, a spraying device set substantially at its angle ofmaximum range, and means adapted automatically to tend to cut down therange of discharge of said spraying device as the pressure from saidsource of supply increases.

Signed at South Orange, in the county of Essex and State of New Jerseythis 1st day of November A. D. 1915.

ROBERT S. BLAIR.

